Change that the args overload has to be set to override settings from arguments

So we do not have issues with values change because an arugment has the same name as a setting name

test-run/config_handling/config/settings.ini

@@ -1,5 +1,6 @@
 [TestA]
 foo=bar
+overload_from_args=bar
 foobar=1
 bar=st
 arg_overload=should_not_be_set_because_of_command_line_is_list

test-run/config_handling/settings_loader.py

@@ -39,7 +39,7 @@ def main():
 
     sl = SettingsLoader(
         {
-            'foo': 'OVERLOAD',
+            'overload_from_args': 'OVERLOAD from ARGS',
             'arg_overload': ['should', 'not', 'be', 'set'],
             'arg_overload_list': ['overload', 'this', 'list'],
             'arg_overload_not_set': "DO_NOT_SET",
@@ -53,11 +53,11 @@ def main():
             config_load,
             {
                 # "doesnt": ["split:,"],
-                "foo": ["mandatory:yes"],
+                "overload_from_args": ["args_override:yes", "mandatory:yes"],
                 "foobar": ["check:int"],
                 "bar": ["mandatory:yes"],
-                "arg_overload_list": ["split:,",],
-                "arg_overload_not_set": ["args:no"],
+                "arg_overload_list": ["args_override:yes", "split:,",],
+                "arg_overload_not_set": [],
                 "some_match": ["matching:foo|bar"],
                 "some_match_list": ["split:,", "matching:foo|bar"],
                 "test_list": [